Roof-bracket.



No. 824,789. PATENTED JULY 3, i906.

HUNTER & Rf: HASKBLL.

ROD? BRAGKET. APPLICATION FILED BIiPT. 12,1905.

dcrwk NITED STATES PATENT OFFICE.

ULARENUE HUNTER, OF WEST SOMERVILLE, AND FREDERICK F. HASKELL, Ol CAMBRIDGE, MASSACHUSETTS.

ROOF-BRACKET.

Specification of Letters Patent.

ratenteci July 3, 1906.

Application filed September 12; 1905. Serial Kc, 2784379.

To oil-Z whom it may concern:

Be it known that we, CLARENCE HUNTER, residing at West Somerville, and FREDERICK F. HAsKnLL, residing at Cambridge, in the county of Middlesex and State of Massachusetts, citizens of the United States of America, have invented certain new and useful Improvements in Roof-Brackets, of which the following is a specification.

This invention relates to roof-brackets, and particularly to folding metal brackets for use in supportin a platform for the ca enters or other niec anics operating upon t e roof of a building.

It has for its ob'ect the simplification of devices of this kind, while at the same time their efficiency is greatly increased.

The invention consists in certain novel features of construction and arrangement of parts, which will be readily understocdhy reference to the description of the drawings and to the claim to be hereinafter given. Of the drawings, Figure 1 represents a side elevation of the improved bracket shown as applied to a section of a roof. Fig. 2 represents a front elevation of the same. Fig. 3 represents a plan of the same, and Fig. 4 represents a rear elevation of the bracket in closed position.

Similar characters designate like parts throughout the several figures of the drawin s.

n the drawings, is the platforinsup port, formed of two plates 11, riveted together at 12 and 13 and separated at the rear to form the fork 14, the ends of which are pivoted at 15 to the upright member 16, the lower end of which is provided with spurs or points 17, adapted to engage the upper surface of the roo The support 10 has pivoted thereto at 18 the brace 19, the outer end of which is provided with eyes or openings 20, adapted to engage the hooked lug 21, struck up from the side of the member 16. The brace 19 is provided with a plurality of openings 20 in order that the support 10 may be maintained horizontal for any inclination of roof.

The support 10 is provided on its up r edge with a plurality of spurs 22, adaptefio engage the platform 23 to prevent it from moving on said support 10. The free end of said support 10 is provided with outwardlyprojecting lugs 24, extending diagonally across the sides of said member 10, and separated from the lugs 24 by the thickness of a shingle are the pointed outwardly-bent lu s 25.

The shingles 26 are secured to the roof 27 with a space 28 between them, and the end of the support 10 is adapted for insertion therein, with the lugs 24 extending beneath a shin is on either side of said space 28.

Vi en the bracket is to be inserted into position for engagement, it may be held in such position as to secure an easy insertion; but as soon as the end has been inserted sufficiently far beneath the shingle the support is moved downward into a horizontal position, which causes the upper edge of the lugs 24 to impinge upon the under side of the outer shingle, while the lower edge will impinge upon the outer face of the under shingle. At the same time the depression of the support 10 will cause the pointed lugs to impinge into the upper surface of the outer shingle 26. It will be seen by reference to Fig. 1 that when the bracket is in Working position, with the support 10 horizontal, the shingle 26 is gripped between the lugs 24 and 25 in such a manner that it would be impossible for them to slip. The spurs or pointers 17 are then driven into the outer face of the roof, which thus provides a very safe and firm support for the platform, which is essentialfor the use of the workmen.

The member 16 is made of sheet metal U- shaped in cross-section and when not in use the parts are folded into the same, causing the whole device to occupy but little space in transportation.

The brace 19 is made of sprin metal which, when in use, causes it to bear rmly against the side of the member 16, and thereby hold it in secure engagement with the hook 21.

The operation of the device and its many advantages it is believed will be readily understood without further description.

Having thus described our invention, we claim A roof-bracket, comprising a U-shaped metallie plate, provided with roofengaging spurs at one end, a platform-support consisting of two flat bars riveted together, so that the bars will be in contact from substantially the center to one end, the bars being spread apart at the other end and pivotally secured to the inner surfaces of the U-shaped plate, the bars at that end Where they are riveted together bein provided each with two cut Wardly-exten ing spurs, and a. brace pivotally attached to the platform-support and adjustably connected with the U-shaped plate.

Signed by us at Boston, Massachusetts, this 1st day of September, 1905.

CLARENCE HUNTER. FREDERICK F. HASKELL.

Witnesses:

WALTER E. LOMBARD, EDWIN T. LUOE 

